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IRF7811W Datasheet(PDF) 3 Page - International Rectifier

Part No. IRF7811W
Description  Power MOSFET for DC-DC Converters
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Maker  IRF [International Rectifier]
Homepage  http://www.irf.com
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IRF7811W
www.irf.com
3
Fig 1. Normalized On-Resistance
Vs. Temperature
Fig 2. Typical Gate Charge Vs.
Gate-to-Source Voltage
Fig 3. On-Resistance Vs. Gate Voltage
-60 -40 -20
0
20
40
60
80 100 120 140 160
0.0
0.5
1.0
1.5
2.0
T , Junction Temperature ( C)
J
°
V
=
I =
GS
D
4.5V
15A
0
4
8
12
16
20
QG, Total Gate Charge (nC)
0.0
2.0
4.0
6.0
ID= 15A
VDS = 16V
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
VGS, Gate -to -Source Voltage (V)
0.005
0.010
0.015
0.020
ID = 15A
Fig 4. Typical Capacitance Vs.
Drain-to-Source Voltage
1
10
100
VDS, Drain-to-Source Voltage (V)
0
1000
2000
3000
4000
Coss
Crss
Ciss
VGS = 0V,
f = 1 MHZ
Ciss = Cgs + Cgd, Cds SHORTED
Crss = Cgd
Coss = Cds+ Cgd




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